package com.bitcointoolkit.web.config;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

import com.bitcointoolkit.web.support.XssHttpServletRequestWrapper;


/**
 * XSS拦截器  可拦截XSS,SQL注入等攻击
 * @author caisirius
 */
public class XSSFilter implements Filter {
	FilterConfig filterConfig = null;

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		this.filterConfig = filterConfig;
	}

	@Override
	public void destroy() {
		this.filterConfig = null;
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		chain.doFilter(new XssHttpServletRequestWrapper(
				(HttpServletRequest) request), response);
	}
}